Universal mill.



PATENTED JUNE 26, I906.

NOL824 518.

P. M. WEBER. UNIVERSAL MILL. APPLICATION FILED MAB. 5, 1902.

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IIIJ U .L 4 I l I l I I I I l l I I l IIC R o T N E V N WITNESSES No. 824,518. PATENTED JUNE 26, 1906.

P. M. WEBER.

UNIVERSAL MILL.

APPLICATION FILED MAE. 6, 1902. I

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WITNESSES No- 824,518. PATENTED JUNE 26, 1906.

P. M. WEBER. UNIVERSAL MILL.

APPLICATION FILED mu. 5, 1902.

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WITNESSES INVENTOR PATENTED JUNE 26, 1906. P.- M. W UNIVERSA LL.

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l T N E 8 8 E Q l N V E N T O H No. 824,518. PATENTED JUNE 26, 1906. P. M. WEBER.

UNIVERSAL MILL.

APPLICATION FILED MAR. 5 1902.

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FT'H FT'TTFTTI m "i a F: W mm a M PETER M. WEBER, OF HOMESTEAD, PENNSYLVANIA.

UNIVERSAL MILL.

Specification of Letters Patent.

Patented June 26, 1906.

Application filed March 5, 1902. Serial No. 96,801-

To all 7l'7ll37lb it may concern:

Be it known that 1, PETER M. IVEBER, of Homestead, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Universal Mill, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a side elevation of a universal mill constructed in accordance with my invention. Fig. 2 is a partial front view of the same. Fig. 3 is a sectional top plan view of the same between the horizontal rolls, showing the mill arranged for rolling angles. Fig. 4 is a view similar to Fig. 3, showing a mill arranged for rolling channels. Fig. 5 is a view similar to Fig. 3, showing a modified form of the invention.

My invention relates tothat class of universal mills wherein frictionally-driven vertical rolls are employed whose axes lie in a vertical plane passing through the axes of the horizontalrolls;and the object of the invention is to improve the operation of such mills, to increase the speed of reduction, and to arrange them for rolling angles, bars, or' similar material.

The invention consists in combining a pair of positive]y-driven vertical rolls with a mill having positivelvalriven horizontal rolls, and frictionally-driven vertical rolls at the centers of the horizontal rolls.

It also consists in combining with a universal mill having centrally-locatetl frictionally-driven vertical rolls two sets of positively-driven rolls, one on each side of the mill.

in the drawings, referring to the form of Figs. 1' and 2, 2 2 represent l )rizontal rolls, mounted in side housings 3 and shaped for rolling angles, as indicated in Fig. 3. The side edges of the angle are acted upon by verticel frictionally-driven rolls 4 4, having short necks 5, mounted in bearings (Z, removably secured in horizontal slides 7. The axes of these vertical rolls lie in a vertical plane containing the axes of the horizontal rolls. The slides for the vertical rolls 4 may be adjusted toward and from each other by means of screw-threaded shafts 8, having spline connect ons with bevel-wheels 9. The bevelwheels 9 intermesh with corresponding bevelpinions 10 upon inclined shafts 11, having similar bevelear connections 12 with a shaft 13 ,common to oth, extending across the front of the mill. Ahand-wheel 14 may be provided on one of the shafts 8, and by turning this wheel the verticalrolls are simultaneously adjusted toward or from each other, as desired. If it is desired to roll. an an de having one leg or flange longer than the otdier, these gearing connections may be disconnected and one of the vertical rolls adjusted to a greater distance from the center of the pass than the other. It will be noted that I show the small vertical rolls as acting upon the edges of theangle-flange's.

Another most important feature of my invention lies in the proportion of the diameter of the vertical frictionally-driven roll to that of the horizontal positively-driven roll. I have found by actual experiment that in order to make the mill operative the diameter of the vertical roll must not be greater than one-half, and preferably one-third, the diameter of the horizontal positively-driven roll with which it coacts. The reason for this is that the metal being rolled must be iirst'engaged by the horizontal rolls and sufficient grip thereon afforded to draw the metal through the vertical rolls which are not positively driven, and if the diameter of the vertical roll is greater than one-half the diameter of the horizontal roll the piece Will stick and the horizontal rolls will not be able to draw it through the mill, especially where the additional positively-driven vertical rolls are not used.

To assist in theoperation of the mill and increase the reduction, I provide a pair of vertical rolls 15, mounted in adjustable horizontal slides 16. Each roll 15 is positively driven by spur-gearing 17 on shafts connecting with electric motors 18 through bevel-gearing 19. The slides 16 may be adjusted by screw-threaded shafts 20, having squared ends 21, adapted to receive awrench, and the electric motors are adjusted to correspond thereto by set-screws and bolts. The housings for these Vertically-driven rolls may also support the motors 18. This independent driving of the vertical rolls of a universal mill I consider new.

In operating the mill the rolls 15 are preferably adjusted so that they are slightly closer together than the frictionally-driven rolls 4. As the piece first enters the mill its sides are reduced by the positively-driven vertical rolls, and as the metal is reduced in the four succeedin rolls it spreads laterally and its edges are he d in shape by the vertical rolls 4. As soon as the piece is seized by the rotating by friction.

In Fig. 4 I show a mill similar to that of Figs. 1 and 2, except that it is arranged for rolling channels or beams, and in this case 1 the vertical lrictionally-driven rolls engage the outer faces of the Ilanges. I have marked the parts in this ligure with the same num-.

erals used in Fig. 3, adding the letter 0.. in this form the driven vertical rolls will be.

used as guide-rolls, they having little or no reducing action.

In Fig. 5 i: show a mill similar to that of ing to Fig. 1 are designated by the same.

numerals with the addition of the letter (5. The rolls 15, are similar to the rolls 15" and are positively driven in the same manner or by any desirable connections.

The advantages of my invention result especially from the use of the positivelydriven vertical rolls in combination with the horizontal rolls and centrally-leeatcd verti-. cal frictio11allydriven rolls, since the action of the mill is improved and the product made more uniform and reduction more rapidly obtained. As applied to the rolling of angles, bars, or similar material, the use oi" a frictionallydriven vertical roll working upon the edge of a leg or llange is of special advantage. The peculiar relation of the diameters of the vertical horizontal rolls is important, especially where the vertical posiand 2 with the addition of two posi- I and arrangements of the rolls, the shape oi the pass, the means for driving, &c., without departing from my invention.

I claim.

1. A universal mill having horizontal rolls, vertical l'rictionally-rlriven rolls located centrally thereof, positively-driven vertical rolls arranged in line with the pass, and mechanism lor driving the horizontal rolls and the positively-driven vertical rolls; substantially as described.

2. A universal mill having horizontal rolls, vertical lrictionally-driven rolls located cen trally thereof, an outer pair of vertical rolls slightly nearer together than the frictionallydriven rolls, and connections for driving the horizontal rolls and the outer vertical rolls;

substantially as described.

3. A. rolling-mill having horizontal positively-driven rolls and vertical frictionallydriven rolls, the axes of all the rolls lying in. the same vertical plane, and two pairs of vertical positivelydriven rolls, one pair on each side of and in line with the pass ol the tour rolls; substantially as described.

4-. A rolling-mill having horizontal positively-driven rolls, a pair of vertical frictionally-driven rolls, the axes of said rolls lying in the same vertical plane, a pair of vertical posit i\"el \'-driven rolls in line with the pass ol' the tour rolls, and mechanism for adjusting all the vertical rolls; substantially as described.

5. A universal mill, having horizontal positively-driven rolls, a vertical l'rictionaily driven roll having its axis in the plane passing vertically through the. axes oi the horizontal rolls, a pair olpositively-driven \crtieal rolls, and connections for driving said positively-driven vertical rolls independent of the horizontal rolls; substantially as described.

in testimony whereof I have hereunto set my hand.

PETER M. WEBER.

\Vitnesses:

ll. M. tonwm, P. BYRNES; 

